TechPowerUp Ryzen DRAM Calculator WinRing0x64.sys initialization

published 2023-02-26 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-23339

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits: 0; none known

A vulnerability, which was classified as critical, has been found in TechPowerUp Ryzen DRAM Calculator 1.2.0.5. This issue affects some unknown processing in the library WinRing0x64.sys. The manipulation leads to improper initialization. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-221807.

Exploit prediction

0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/zeze-zeze/WindowsKernelVuln/tree/master/CVE-2023-1048 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	3.0	5.3	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	4.3	AV:L/AC:L/Au:S/C:P/I:P/A:P
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

TechPowerUp Ryzen DRAM Calculator

Classification

Weakness

CWE-665 Improper Initialization

References

github.com /zeze-zeze/WindowsKernelVuln/tree/master/CVE-2023-1048
exploit, third-party-advisory
vuldb.com /?id.221807
vdb-entry, technical-description, permissions-required, third-party-advisory
vuldb.com /?ctiid.221807
signature, permissions-required, third-party-advisory

Sources

CVE List CVE-2023-1048
NVD CVE-2023-1048

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary